SY89421VZC Micrel Inc, SY89421VZC Datasheet

SY89421VZC

Manufacturer Part Number

SY89421VZC

Description

IC PHASE LOCK LOOP 5/3.3V 20SOIC

Manufacturer

Micrel Inc

Type

Phase Lock Loop (PLL)r

Series

ClockWorks™r

Datasheet

1.SY89421VZC.pdf (8 pages)

Specifications of SY89421VZC

Pll

Yes

Input

Clock

Output

PECL

Number Of Circuits

Ratio - Input:output

2:2

Differential - Input:output

Yes/Yes

Frequency - Max

1.12GHz

Divider/multiplier

Yes/No

Voltage - Supply

3.135 V ~ 5.25 V

Operating Temperature

0°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

20-SOIC (7.5mm Width)

Frequency-max

1.12GHz

Number Of Elements

Supply Current

100mA

Pll Input Freq (max)

2GHz

Operating Supply Voltage (typ)

3.3/5V

Operating Temp Range

0C to 85C

Package Type

SOIC W

Output Frequency Range

Up to 1120MHz

Operating Supply Voltage (min)

3.135V

Operating Supply Voltage (max)

5.25V

Operating Temperature Classification

Commercial

Pin Count

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SY89421VZC

Manufacturer:

MICREL

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

SY89421VZC

Manufacturer:

SILERGY/矽力杰

Quantity:

20 000

Current page: 1 of 8
Download datasheet (68Kb)

PIN CONFIGURATION

FEATURES

3.3V and 5V power supply options

1.12GHz maximum VCO frequency

30MHz to 560MHz reference input operating

frequency

External 2.0GHz VCO capability

Low jitter differential design

Frequency doubler mode

PECL Differential output

External loop filter optimizes performance/cost

Available in 20-pin SOIC package

APPLICATIONS

Workstations

Advanced communications

High-performance computing

HFIN

FIN

TOP VIEW

Z20-1

SOIC

RIN

FOUT

HFOUT

5V/3.3V

HIGH-PERFORMANCE

PHASE LOCKED LOOP

CCO

Micrel-Synergy's differential PLL technology. It is capable

of operating in the 30MHz to 560MHz reference input

frequency range, and up to 2000MHz with the HFIN input

and an external VCO. Use of a phase-frequency detector

results in excellent PLL locking and tracking characteristics.

Error correction voltages are generated by the detector if

either phase or frequency deviations occur. The VCO has

a frequency range covering more than a 2:1 ratio from

480MHz to 1120MHz.

FOUT to FIN, FIN by means of external circuitry. This

allows the flexibility of inserting additional circuitry off-chip

in the feedback paths, such as an additional divider and/or

buffer. Pulldown resistors are required for the FOUT and

FOUT pins. High frequency inputs HFIN, HFIN and

corresponding outputs HFOUT, HFOUT are featured for

use with external components such as an active loop filter

and a high frequency VCO.

for optimum VCO operation, in other words with the VCO in

the center of its range. Select pin S3 allows bypassing the

N divider enabling the PLL to output the VCO directly.

Select pin S4 is used to select off-chip or on-chip VCO.

Select pin S5 enables the divide-by-two prescaler, which is

useful in frequency doubling applications. All Select pins

are TTL compatible.

DESCRIPTION

The SY89421V is a digital Phase Locked Loop based on

Feedback for the loop is realized by connecting FOUT,

Select pins S1 and S2 are used to program the N divider

ClockWorks™

Rev.: F

Issue Date: May 2000

SY89421V

Amendment: /0

FINAL

Related parts for SY89421VZC

SY89421VZC Summary of contents

Page 1

FEATURES 3.3V and 5V power supply options 1.12GHz maximum VCO frequency 30MHz to 560MHz reference input operating frequency External 2.0GHz VCO capability Low jitter differential design Frequency doubler mode PECL Differential output External loop filter optimizes performance/cost Available in 20-pin ...

Page 2

Micrel BLOCK DIAGRAM RIN D RIN PHASE-FREQUENCY DETECTOR FIN ÷ P (1, 2) FIN S5 LOOP FILTER COMPONENT SELECTION F1 F2 LOOP FILTER ÷ 2 VCO MUX ÷ N (1,2,4,8,10,12,16,20 1.0 ...

Page 3

Micrel PIN NAMES Pin Function F1 Filter Pin 1 F2 Filter Pin 2 RIN Reference Input RIN Inverted Reference Input FIN Feedback Input FIN Inverted Feeback Input HFIN High Frequency Input HFIN Inverted High Frequency Input HFOUT High Frequency Output ...

Page 4

Micrel FREQUENCY SELECTION TABLE Divide-by-P ...

Page 5

Micrel 5V DC ELECTRICAL CHARACTERISTICS 5. CCO Symbol Parameter V Power Supply Voltage CC I Power Supply Current ( Power Supply Current (V CCO 3.3V DC ELECTRICAL CHARACTERISTICS ...

Page 6

... RIN Reference Frequency Input FIN Feedback Frequency Input HFIN High Frequency Input HFOUT High Frequency Output FOUT Frequency Output PRODUCT ORDERING CODE Odering Package Code Type SY89421VZC Z20-1 SY89421VZCTR Z20-1 Min. Typ. Max. — — 300 550 — 300 550 — ...

Page 7

Micrel 20 LEAD SOIC .300" WIDE (Z20-1) 7 ClockWorks™ SY89421V Rev. 03 ...

Page 8

... TEL This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc (408) 914-7878 http://www ...

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